What are four responsibilities of citizens of the united states? explain how those civic duties make our country a better place.

Explanation:

i chose these four as they are the easiest because 1 being informed about the issues you can change the issue or fix it. 2 respecting the law will put the crime rate down which will make the country safer. 3 respecting other will stop fight that can happen, and will make people more open to there beliefs. 4 helping in your local community will help it grow and develop faster.

answer:

d. because dr. laguardia selected a widely used measure, his study generalizes to has strong external validity. external validity has limited external validity. other applications of this measure.

the widely used measure that he applied to his experiment was the benton facial recognition test. it employed on to football players and as result, only players who suffered brain concussions did not pas this test. and although it has an external validity, it is limited because it isn't general to apply to other population.